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Pharmacosiderite Mineral Data
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General Pharmacosiderite Information
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 Chemical Formula: |
KFe+++4(AsO4)3(OH)4•6-7(H2O) |
| Composition: |
Molecular Weight = 873.38 gm |
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Potassium 4.48 % K 5.39 % K2O |
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Iron 25.58 % Fe 36.57 % Fe2O3 |
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Arsenic 25.74 % As 39.47 % As2O5 |
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Hydrogen 2.08 % H 18.56 % H2O |
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Oxygen 42.13 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
KFe3+4(AsO4)3(OH)4•7(H2O) |
| IMA Status: |
Valid Species (Pre-IMA) 1813 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek, farmakon for "poison" and sideros for "iron." |
| Name Pronunciation: |
Pharmacosiderite  |
| Synonym: |
ICSD 27302 |
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PDF 34-155 |
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